X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/be20eef52da4b7f361333ea70a8d705a98ae779e..32ab4bd05cb298f6bf1f9574f5b20570beaae429:/apt-pkg/pkgcache.cc

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 91b75f52e..8d6e242b1 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -54,12 +54,8 @@ pkgCache::Header::Header()
    
    /* Whenever the structures change the major version should be bumped,
       whenever the generator changes the minor version should be bumped. */
-   MajorVersion = 8;
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
-   MinorVersion = 2;
-#else
-   MinorVersion = 1;
-#endif
+   MajorVersion = 10;
+   MinorVersion = 0;
    Dirty = false;
    
    HeaderSz = sizeof(pkgCache::Header);
@@ -86,11 +82,13 @@ pkgCache::Header::Header()
    MaxDescFileSize = 0;
    
    FileList = 0;
-   StringList = 0;
+#if APT_PKG_ABI < 413
+   APT_IGNORE_DEPRECATED(StringList = 0;)
+#endif
    VerSysName = 0;
    Architecture = 0;
-   memset(PkgHashTable,0,sizeof(PkgHashTable));
-   memset(GrpHashTable,0,sizeof(GrpHashTable));
+   SetArchitectures(0);
+   SetHashTableSize(_config->FindI("APT::Cache-HashTableSize", 10 * 1048));
    memset(Pools,0,sizeof(Pools));
 
    CacheFileSize = 0;
@@ -119,6 +117,7 @@ bool pkgCache::Header::CheckSizes(Header &Against) const
 // Cache::pkgCache - Constructor					/*{{{*/
 // ---------------------------------------------------------------------
 /* */
+APT_IGNORE_DEPRECATED_PUSH
 pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
 {
    // call getArchitectures() with cached=false to ensure that the 
@@ -128,6 +127,7 @@ pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
    if (DoMap == true)
       ReMap();
 }
+APT_IGNORE_DEPRECATED_POP
 									/*}}}*/
 // Cache::ReMap - Reopen the cache file					/*{{{*/
 // ---------------------------------------------------------------------
@@ -145,7 +145,6 @@ bool pkgCache::ReMap(bool const &Errorchecks)
    DescP = (Description *)Map.Data();
    ProvideP = (Provides *)Map.Data();
    DepP = (Dependency *)Map.Data();
-   StringItemP = (StringItem *)Map.Data();
    StrP = (char *)Map.Data();
 
    if (Errorchecks == false)
@@ -168,15 +167,23 @@ bool pkgCache::ReMap(bool const &Errorchecks)
    if (Map.Size() < HeaderP->CacheFileSize)
       return _error->Error(_("The package cache file is corrupted, it is too small"));
 
+   if (HeaderP->VerSysName == 0 || HeaderP->Architecture == 0 || HeaderP->GetArchitectures() == 0)
+      return _error->Error(_("The package cache file is corrupted"));
+
    // Locate our VS..
-   if (HeaderP->VerSysName == 0 ||
-       (VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)
+   if ((VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)
       return _error->Error(_("This APT does not support the versioning system '%s'"),StrP + HeaderP->VerSysName);
 
-   // Chcek the arhcitecture
-   if (HeaderP->Architecture == 0 ||
-       _config->Find("APT::Architecture") != StrP + HeaderP->Architecture)
-      return _error->Error(_("The package cache was built for a different architecture"));
+   // Check the architecture
+   std::vector<std::string> archs = APT::Configuration::getArchitectures();
+   std::vector<std::string>::const_iterator a = archs.begin();
+   std::string list = *a;
+   for (++a; a != archs.end(); ++a)
+      list.append(",").append(*a);
+   if (_config->Find("APT::Architecture") != StrP + HeaderP->Architecture ||
+	 list != StrP + HeaderP->GetArchitectures())
+      return _error->Error(_("The package cache was built for different architectures: %s vs %s"), StrP + HeaderP->GetArchitectures(), list.c_str());
+
    return true;
 }
 									/*}}}*/
@@ -185,20 +192,20 @@ bool pkgCache::ReMap(bool const &Errorchecks)
 /* This is used to generate the hash entries for the HashTable. With my
    package list from bo this function gets 94% table usage on a 512 item
    table (480 used items) */
-unsigned long pkgCache::sHash(const string &Str) const
+map_id_t pkgCache::sHash(const string &Str) const
 {
    unsigned long Hash = 0;
    for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
       Hash = 41 * Hash + tolower_ascii(*I);
-   return Hash % _count(HeaderP->PkgHashTable);
+   return Hash % HeaderP->GetHashTableSize();
 }
 
-unsigned long pkgCache::sHash(const char *Str) const
+map_id_t pkgCache::sHash(const char *Str) const
 {
    unsigned long Hash = tolower_ascii(*Str);
    for (const char *I = Str + 1; *I != 0; ++I)
       Hash = 41 * Hash + tolower_ascii(*I);
-   return Hash % _count(HeaderP->PkgHashTable);
+   return Hash % HeaderP->GetHashTableSize();
 }
 									/*}}}*/
 // Cache::SingleArchFindPkg - Locate a package by name			/*{{{*/
@@ -209,13 +216,10 @@ unsigned long pkgCache::sHash(const char *Str) const
 pkgCache::PkgIterator pkgCache::SingleArchFindPkg(const string &Name)
 {
    // Look at the hash bucket
-   Package *Pkg = PkgP + HeaderP->PkgHashTable[Hash(Name)];
+   Package *Pkg = PkgP + HeaderP->PkgHashTableP()[Hash(Name)];
    for (; Pkg != PkgP; Pkg = PkgP + Pkg->NextPackage)
    {
-      if (unlikely(Pkg->Name == 0))
-	 continue;
-
-      int const cmp = strcasecmp(Name.c_str(), StrP + Pkg->Name);
+      int const cmp = strcmp(Name.c_str(), StrP + (GrpP + Pkg->Group)->Name);
       if (cmp == 0)
 	 return PkgIterator(*this, Pkg);
       else if (cmp < 0)
@@ -274,12 +278,9 @@ pkgCache::GrpIterator pkgCache::FindGrp(const string &Name) {
 		return GrpIterator(*this,0);
 
 	// Look at the hash bucket for the group
-	Group *Grp = GrpP + HeaderP->GrpHashTable[sHash(Name)];
+	Group *Grp = GrpP + HeaderP->GrpHashTableP()[sHash(Name)];
 	for (; Grp != GrpP; Grp = GrpP + Grp->Next) {
-		if (unlikely(Grp->Name == 0))
-		   continue;
-
-		int const cmp = strcasecmp(Name.c_str(), StrP + Grp->Name);
+		int const cmp = strcmp(Name.c_str(), StrP + Grp->Name);
 		if (cmp == 0)
 			return GrpIterator(*this, Grp);
 		else if (cmp < 0)
@@ -356,19 +357,15 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
 	   last one we check, so we do it now. */
 	if (Arch == "native" || Arch == myArch || Arch == "all") {
 		pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
-		if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
+		if (strcmp(myArch, Owner->StrP + Pkg->Arch) == 0)
 			return PkgIterator(*Owner, Pkg);
 		Arch = myArch;
 	}
 
-	/* Iterate over the list to find the matching arch
-	   unfortunately this list includes "package noise"
-	   (= different packages with same calculated hash),
-	   so we need to check the name also */
+	// Iterate over the list to find the matching arch
 	for (pkgCache::Package *Pkg = PackageList(); Pkg != Owner->PkgP;
 	     Pkg = Owner->PkgP + Pkg->NextPackage) {
-		if (S->Name == Pkg->Name &&
-		    stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+		if (stringcmp(Arch, Owner->StrP + Pkg->Arch) == 0)
 			return PkgIterator(*Owner, Pkg);
 		if ((Owner->PkgP + S->LastPackage) == Pkg)
 			break;
@@ -428,10 +425,10 @@ void pkgCache::GrpIterator::operator ++(int)
       S = Owner->GrpP + S->Next;
 
    // Follow the hash table
-   while (S == Owner->GrpP && (HashIndex+1) < (signed)_count(Owner->HeaderP->GrpHashTable))
+   while (S == Owner->GrpP && (HashIndex+1) < (signed)Owner->HeaderP->GetHashTableSize())
    {
       HashIndex++;
-      S = Owner->GrpP + Owner->HeaderP->GrpHashTable[HashIndex];
+      S = Owner->GrpP + Owner->HeaderP->GrpHashTableP()[HashIndex];
    }
 }
 									/*}}}*/
@@ -445,10 +442,10 @@ void pkgCache::PkgIterator::operator ++(int)
       S = Owner->PkgP + S->NextPackage;
 
    // Follow the hash table
-   while (S == Owner->PkgP && (HashIndex+1) < (signed)_count(Owner->HeaderP->PkgHashTable))
+   while (S == Owner->PkgP && (HashIndex+1) < (signed)Owner->HeaderP->GetHashTableSize())
    {
       HashIndex++;
-      S = Owner->PkgP + Owner->HeaderP->PkgHashTable[HashIndex];
+      S = Owner->PkgP + Owner->HeaderP->PkgHashTableP()[HashIndex];
    }
 }
 									/*}}}*/
@@ -524,7 +521,10 @@ operator<<(std::ostream& out, pkgCache::PkgIterator Pkg)
       out << " -> " << candidate;
    if ( newest != "none" && candidate != newest)
       out << " | " << newest;
-   out << " > ( " << string(Pkg.Section()==0?"none":Pkg.Section()) << " )";
+   if (Pkg->VersionList == 0)
+      out << " > ( none )";
+   else
+      out << " > ( " << string(Pkg.VersionList().Section()==0?"unknown":Pkg.VersionList().Section()) << " )";
    return out;
 }
 									/*}}}*/
@@ -822,7 +822,7 @@ int pkgCache::VerIterator::CompareVer(const VerIterator &B) const
 // VerIterator::Downloadable - Checks if the version is downloadable	/*{{{*/
 // ---------------------------------------------------------------------
 /* */
-bool pkgCache::VerIterator::Downloadable() const
+APT_PURE bool pkgCache::VerIterator::Downloadable() const
 {
    VerFileIterator Files = FileList();
    for (; Files.end() == false; ++Files)
@@ -835,7 +835,7 @@ bool pkgCache::VerIterator::Downloadable() const
 // ---------------------------------------------------------------------
 /* This checks to see if any of the versions files are not NotAutomatic. 
    True if this version is selectable for automatic installation. */
-bool pkgCache::VerIterator::Automatic() const
+APT_PURE bool pkgCache::VerIterator::Automatic() const
 {
    VerFileIterator Files = FileList();
    for (; Files.end() == false; ++Files)
@@ -1031,8 +1031,14 @@ bool pkgCache::PrvIterator::IsMultiArchImplicit() const
 {
    pkgCache::PkgIterator const Owner = OwnerPkg();
    pkgCache::PkgIterator const Parent = ParentPkg();
-   if (strcmp(Owner.Arch(), Parent.Arch()) != 0 || Owner->Name == Parent->Name)
+   if (strcmp(Owner.Arch(), Parent.Arch()) != 0 || Owner.Group()->Name == Parent.Group()->Name)
       return true;
    return false;
 }
 									/*}}}*/
+APT_DEPRECATED APT_PURE const char * pkgCache::PkgIterator::Section() const {/*{{{*/
+   if (S->VersionList == 0)
+      return 0;
+   return VersionList().Section();
+}
+									/*}}}*/